<template>
  <div class="homeNumBox">
    <div class="numBox">
      <li :class="{
        'number-item': !isNaN(item),
        'mark-item': isNaN(item),
      }" v-for="(item, index) in orderNum" :key="index">
        <span v-if="!isNaN(item)">
          <i ref="numItems">0123456789</i>
        </span>
        <span class="comma" v-else>{{ item }}</span>
      </li>
    </div>
  </div>
</template>

<script>
export default {
  props: {
    // 传入数字
    num: {
      type: [String, Number],
      default: undefined,
    },
  },
  watch: {
    num: {
      handler(newVal, oldVal) {
        if (newVal != undefined && newVal != null && newVal != 0) {
          this.$nextTick(() => {
            let res = newVal.toString();
            this.toOrderNum(res);
            this.setNumberTransform();
          });
        }
      },
      immediate: true,
    },
  },
  data() {
    return {
      orderNum: ["0", "0", "0"],
    };
  },
  mounted() { },

  methods: {
    toOrderNum(num) {
      this.orderNum = num.split("");
    },
    setNumberTransform() {
      const numberItems = this.$refs.numItems;
      const numberArr = this.orderNum.filter(item => !isNaN(item));

      for (let index = 0; index < numberItems.length; index++) {
        const elem = numberItems[index];
        elem.style.transform = `translate(-50%, -${numberArr[index] * 10}%)`;
      }
    },
  },
};
</script>

<style lang="scss" scoped>
.homeNumBox {
  display: inline-block;
}

.numBox {
  display: flex;
  text-align: center;
}

.number-item {
  width: 20px;
  height: 50px;
  list-style: none;
  border-radius: 4px;
  margin: 0px;

  font-family: 'Arial Narrow Bold', 'Arial Narrow', 'Arial', sans-serif;
  font-weight: 700;
  color: #0CF4D1;
}

.number-item>span {
  position: relative;
  display: inline-block;
  margin-right: 0px;
  width: 100%;
  height: 100%;
  writing-mode: vertical-rl;
  text-orientation: upright;
  overflow: hidden;
  font-family: AgencyFB-Bold;
  color: #fff;
}

.number-item>span>i {
  font-style: normal;
  position: absolute;
  top: 11px;
  left: 50%;
  transform: translate(-50%, 0);
  transition: transform 1s ease-in-out;
  letter-spacing: 10px;
  font-size: 40px;
}

.number-item:last-child {
  margin-right: 0;
}
</style>

